Planer attachment for jointers



April 2l, 1931. H. E. TAU-rz PLANER ATTACHMENT FOR JOINTERS 2 Sheets-Sheet l Filed April l5, 1929 /M/NTOR A TTOPNE Y April 2l, i931. H. E. TAUTZ 1,802,096

PLANER ATTACHMENT FOR JOINTERS Patented Apr. 21, 1931 UNITED STATES PATENT vOFFICE HERBERT E. TAUTZ, OF MILWAUKEE, WlSCONSIN, ASSIGN'OR T0 DELTA MANUFACTUR- ING COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN PLANER ATTACHMENT IOB'JOINTERS Application led April 15, 1929. Serial No. 355,231.

This invention has for its object to provide an attachment for j ointers which will permit the work of a planer Abeing done thereon.v

Another object of the invention is to accomplish this purpose by providing a detachable frame carrying anV adjustable upper plate parallel with the table and against which the work that has had one face dressed may be caused to bear whilehavin'g a parallel face dressed.

Another object of the invention is to provide such an attachment with means for hold,- ing the work against the upper plate while being fed to the cutter.

Another object of the invention is to simplify the construction and render it inexpensive to manufacture and suit-able for small size machines such as used in the so-called home workshops.

With the above and other objects vin view the invention consists in the planer attachment for jointers as herein claimed and all equivalents. j v Referring to the accompanying drawings, in which like characters of reference in if cate the samefparts in different views,

Fig. 1 is a ront view of a jointer suitable for receiving the planer attachment formingthe presentinvention;

3o ig. 2 is an end view thereof; Y

Fig. 3. is a view similar, to Fig. 1 with the planer attachment substituted forparts of the jointer; j

Fig. 4 isa central vertical sectional view a5 through the attachment on the plane of line 4--4 of Fig. 5;

Fig. 5 is an elevation partly in section of the attachment as seen from the right of Fig. 4, and

ig. 6 is a sectional plan view on the plane' of line 6-6 of Fig. 5.

In these drawings, 10 indicates a base having a cutter arbor 11 mounted in suitable bearingsv therein and driven by vany suitable power connected by a belt (not shown) with the grooved pulley 12 on vthe end thereof. A front table 13 and a. rear table 14 are slidably mounted on inclined ways 1 5 so as to be raised or lowered with respect to the knives as usual, an adjusting nut 16 being threaded on an adjusting screw 17 and engaging a. brack- .tom of the table and is provided with a clamping Vscrew 21 for holding it inits adjustments, whilea supporting plate 22 is pivotally mounted thereon by having an arcshaped groove 23 on its vertical face fitting ona corresponding arc-shaped rib in the vertical face of the bracket, there being a clamping screw 24 onthe bracket extending through van arc-shapedslot 25 in the supporting plate for clamping it` in its angular adjustments. Av hollow guide member 26 '1 is carried by the mounting plate 22 asa 75 gauge ory guide for the work to bear against 1nl its travel past the cutters. A set screw 27 threaded in a lug of the bracket and en gaging a lug on the mounting plate serves as a convenient-means for quickly obtaining 8o the usual normal position of the fence with res ect to the table. v f he machine as described constitutes a jointer capable ofdressing a face on a piece of work accurate with respect to an adjacent face but unsuitable for producing true, straight and smooth surfacing -in a plane parallel with the plane of the dressed Iface. Such work is usually done on large planing machines having top'and bottom cutters for 9o dressing both faeces at the same time, but the present 'invention Vprovides an attachment for the jointer adapting it to guide the work from above and thereby cut a' surface true, straight and smoothand parallel with res ect to the guided surface.

uch attachment comprises a frame 28 having an inclined bottom fittingon the ways 15 after removing the front table 13. Such frame is clamped to the waysby the screw 10" 18 and ertical guides are formed in the `-frame 28 by means of rods 29 accuratel iitted in the top and bottom walls thereo and a carrier 30 is adjustabl slidable on said vertical rods 29 and is raised or lowered by a jack-screw 31 threaded centrally therein with a thrust bearing in the top of the frame and a crank handle 32 for turning it.

The carrier 30 has vertical parallel V grooves on one side of its ends to receive the rods 29 as an open bearing, while a clamping rod 33 passes loosely throu h an opening in the conical central part o the carrier and bears at its ends on the vertical rods 29 opposite said open bearings and a set screw 34 threaded through the central portion of the carrier engages said clamping rod 33 and forces it into clamping en a ement with the rods 29 to rigidly and firm y old the carrier in a definite relation to the frame and consequently a definite relation with the cutter.

- A guide plate 35 is attached by screws 36 to the bottom of the carrier 30 and is accurately fitted to have its bcttom surface serve as a ide for the work parallel to the table and e cutter in all tions of the carrier.

For holdin e work against the guide plate 35 and for advancing the work to the cutter there is provided a swingin presser feed roll 37 turned by a hand cran 38. A pin 39 extends across the frame from one side to the other and has pivotally mounted on it a U-shaped member 40 carrying a shaft 41 in its extended arms, which shaft is turned by the crank handle 38 on its end and carries the pressure and feed roller 37, preferably formed in sections of luted rubber and positioned between the arms of member 40.

Q Attached to the swin `ng feeding and pressure roller frame by tting on the pin 39 and shaft 41 therewith is an arm 42, to which a spring 43 is attached, said spring having other connection with any suitable support permitting it to exert a pull on the arm that will swing the member 40 to lift the roller 37, the opening in the frame throu h which the shaft 41 being considerab y `larger than such aft to permit of such 'lifting movement.

In operation the gauge plate 35 is adj usted to a hei ht above the knives according to the requi thickness for the work, conveniently measured from the tcp of the rear table. Then the work is entered between it and the feed roll 37 with its previously dressed face in contact with the gauge plate Iand is fed to the cutter by the turning of the crank 38, the spring 43 swinging the feed roll to kee it in driving engagement with the work an compensate for unevenness thereof. In the travel of the work between the cutter and the top late or gauge its bottom face will be fini ed true, straight and smooth and parallel with its top face at the proper distance home comparing favorably with the work of full size machines at the planing mill.

The inexpensive machine suitable for home use may be quickly converted from a jointer to a planer by applying this attachment and the only adjustment necessary is the positioning of the gauge plate, which is quickly and easily accom lished.

What I claim as new and desire to secure by Letters Patent is:

1. The combination with a jointer having a base, a cutter thereon, inclined guides formed on the base, and tables adjustably mounted on the guides ada ting the cutter to dress one face of the work' and an attachment replacing one of the tables to adapt the cutter to dress the opposite face of the work relative to the first mentioned face comprising a frame detachably mounted on the inclined ways in place of the table, a gage plate carried thereby at a distance above the cutter, and means on the frame for holding the work against the gage plate as it passes over the cutter.

2. The combination with a jointer having a base, a cutter thereon, inclined guides formed on the base, and tables adjustably mounted on the guides adapting the cutter to dress one face of the work; and an attachment replacin one of the tables to adapt the cutter to dress t e opposite face of the work relative to the first mentioned face comprisin a frame detachably mounted on t-he inclin wa s in lace of t e table, a gage plate carried t erey at a distance above the cutter, and means on the frame for holding the work against the gage plate and feeding it to the cutter.

3. The combination with a jointer haring a base, a cutter thereon, inclined guides formed on the base, and tables adj ustably mounted onthe guides ada ting the cutter to 'dress one face of the wor and an attachment replacing one of the tables to adapt the cutter to dress the oppote face of the work relative to the first mentioned face comprising .a frame detachably mounted on the inclined ways in place of the table, a gage plate carried thereby and adjustable with respect to its distance above the cutter, and means on the frame for holding the work against the gage plate and feeding it toward the cutter.

4. A woodworking machine comprising a jointer having a table and a cutter beneath the table, the front end of the table being detachably and adjustably mounted on inclined ways, a frame ada ted to be mounted on such ways in place of t e table end, a gauge plate adjustably mounted in the frame to dierent positions above the cutter, and fa suitably operated swinging feed roll mounted in the lllv frame to hold work against the gauge plateV` and advance it toward the cutter. 5. A planer attachment for jointers comprisin a frame having means adapting it to be etachably -secured to the jointer table ways, an adj ustably mounted top gauge plate thereon, and a swinging feed roll on the frame for holding the work against the gauge plate and advancing it.

i 6. A planer attachment for jointers comprising a. frame adapted to be detachably secured to the jointer table ways, vertical guide rods therein, a carrier slidably mounted on the guide rods, a jack-Screw for raising and lowering the carrier, .a top gan e plate carried by the carrier, and means for oldng work against the top gauge plate. A 7 A planer attachment for jointers comrising a frame adapted t'o be secured to a Jointer, a pair of vertical guide rods therein,

a carrier having grooves fitting against the guide rods, a clamping bar passing through an opening in the carrier and bearing on the guide rods, a screw threaded in the carrier and engaging the clamping .bar ,for

clamping it against the guide rods, a top gauge plate carried by the carrier, and means or pressing work against the gauge plate.

8. A-planer attachment for jointers coma0 prising a frame adapted to be'detachably secured to the jointer table ways, an adjustable top gauge plate carried thereby, a in ex-- tending across the frame, a U-shape member pivotally mounted 'on the pin, a shaft 135 passing through the arms of the U-shaped member, a fee roll on said shaft between the arms, means for turning the shaft, and means Y for swin in the U-shaped member for causing the ee roll to press Work against the Y 40 gauge plate.

A 9. A planer attachment for jointers comprising a frame adapted -to be vdetachably secured to the jointer table ways, a vertically adjustable top gauge plate` thereon, a pin assing through the frame, a U-shaped memr pivotally mounted thereon, a shaft carf ried by the arms of the U-shaped member,

, a feed roller on the shaft between said arms,

a crank handle on the shaft for turning the 5o feed roller, an arm projecting from the U- shaped member, and a spring connected therewith for swinging the U-shaped member to cause the feed roller to press work against the gauge plate. i

In testimony whereof I aix my signature.

,HERBERT E.'TAUTZ. 

